Harald Welte has uploaded this change for review. (
https://gerrit.osmocom.org/13034
Change subject: PA11: Increase drive strength to 8mA
......................................................................
PA11: Increase drive strength to 8mA
It has been observed that the 20 MHz clock signal doesn't even remotely
resemble a square shape unless DRVSTR=1 is set using this patch.
Change-Id: I1366e13442eda829756aa4121be81eb15135c73e
---
M sysmoOCTSIM/main.c
1 file changed, 5 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ccid-firmware
refs/changes/34/13034/1
diff --git a/sysmoOCTSIM/main.c b/sysmoOCTSIM/main.c
index 09d766e..50e82c6 100644
--- a/sysmoOCTSIM/main.c
+++ b/sysmoOCTSIM/main.c
@@ -18,6 +18,7 @@
#include <parts.h>
#include <hal_cache.h>
+#include <hri_port_e54.h>
#include "atmel_start.h"
#include "atmel_start_pins.h"
@@ -54,6 +55,10 @@
cache_init();
cache_enable(CMCC);
+
+ /* increase drive strength of 20Mhz SIM clock output to 8mA
+ * (there are 8 inputs + traces to drive!) */
+ hri_port_set_PINCFG_DRVSTR_bit(PORT, 0, 11);
}
int main(void)
--
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Gerrit-Project: osmo-ccid-firmware
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I1366e13442eda829756aa4121be81eb15135c73e
Gerrit-Change-Number: 13034
Gerrit-PatchSet: 1
Gerrit-Owner: Harald Welte <lafo...@gnumonks.org>
